Home / 20,241.08-30,354.33-8,555.21

Finding the Fourth Proportional to 20,241.08, 30,354.33 and 8,555.21

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Solution

The fourth proportional to 20,241.08, 30,354.33 and 8,555.21 is: 12,829.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,241.08 : 30,354.33 = 8,555.21 : x
  2. Step 2: Convert to fraction form
    20,241.08/30,354.33 = 8,555.21/x
  3. Step 3: Cross multiply
    20,241.08x = 30,354.33 × 8,555.21
  4. Step 4: Simplify right side
    20,241.08x = 259,687,667.56
  5. Step 5: Solve for x
    x = 259,687,667.56/20,241.08
  6. Step 6: Final answer
    x = 12,829.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.